#8004: region_plot does not handle lambda functions
------------------------+---------------------------------------------------
Reporter: jason | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.1
Component: graphics | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
{{{
sage: sage: region_plot(lambda x,y: x>y, (-4,4), (-4,4))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
/mnt/usb1/scratch/jason/sage-4.3.1.rc1-x86_64-Linux/devel/sage-
main/sage/<ipython console> in <module>()
/mnt/usb1/scratch/jason/sage-4.3.1.rc1-x86_64-Linux/local/lib/python2.6
/site-packages/sage/plot/misc.pyc in wrapper(*args, **kwds)
136 options['__original_opts'] = kwds
137 options.update(kwds)
--> 138 return func(*args, **options)
139
140
/mnt/usb1/scratch/jason/sage-4.3.1.rc1-x86_64-Linux/local/lib/python2.6
/site-packages/sage/plot/contour_plot.pyc in region_plot(f, xrange,
yrange, plot_points, incol, outcol, bordercol, borderstyle, borderwidth)
561 f = [f]
562
--> 563 f = [equify(g) for g in f]
564
565 g, ranges = setup_for_eval_on_grid(f, [xrange, yrange],
plot_points)
/mnt/usb1/scratch/jason/sage-4.3.1.rc1-x86_64-Linux/local/lib/python2.6
/site-packages/sage/plot/contour_plot.pyc in equify(f)
626 import operator
627 from sage.calculus.all import symbolic_expression
--> 628 op = f.operator()
629 if op is operator.gt or op is operator.ge:
630 return symbolic_expression(f.rhs() - f.lhs())
AttributeError: 'function' object has no attribute 'operator'
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8004>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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